Apparatus and method for making metallic frieze yarns



APPARATUS AND METHOD FOR MAKING METALLIC FRIEZE YARNS Filed Aug. 1, 1967INVENTOR.

Allan Wasserman ATTORNEY United States Patent 3,382,655 APPARATUS ANDMETHOD FOR MAKING METALLIC FRIEZE YARNS Allan Wasserman, 61 WingateRoad, Providence, RI. 02906 Filed Aug. 1, 1967, Ser. No. 657,601 7Claims. (Cl. 57-16) ABSTRACT OF THE DISCLOSURE Apparatus and method forcovering non-metallic core yarns with metallic cover yarns to formbright, scintillating frieze yarn suitable for making knitted or wovenfabrics for garments and the like.

Background of the invention Frieze fabrics of the shaggy, rough texturedtype have been well known in the textile industry; such fabrics beingformed primarily of wool yarns. More recently, frieze fabrics in knittedor woven form are derived in whole or in part from metallic yarns whichgive such fabrics a bright scintillating elfect and lend themselves tounlimited apparel designs.

The metallic yarns used in making frieze yarns are rather difiicult tocombine with the usual non-metallic core .and cover yarns; and knownprocedures for making such yarns by twisting operations produce arelatively low output of high quality yarns.

Accordingly, an object of this invention is to provide improvedapparatus and procedures for combining metallic and non-metallic yarn-sin a novel manner, to produce shag rough textured frieze yarns; theoutput of such apparatus being of uniformly high quality.

Another object of this invention is 'to provide improved apparatus ofthe character described, which can be operated at high speeds to producemetallic frieze yarns at rapid production rates; the product being ofuniform high quality.

Other objects of this invention will in part be obvious and in parthereinafter pointed out.

Summary of the invention The instant invention relates to improvedapparatus for applying metallic and non'metallic cover yarns to anon-metallic core yarn at high rates of speed and in a manner toassociate the several yarns to produce a high quality frieze effect.

Brief description of the drawing The single figure of the drawing is 'aschematic view of an apparatus embodying the invention for making friezeyarn.

Description of the preferred embodiment Metallic frieze yarns comprise acore yarn of nonmetallic material such as rayon or the like; the coreyarn being covered with 'a selected metallic yarn which is wound aroundthe core yarn in one direction, the metallic yarn being locked in placeby a cover yarn of non-metallic material such as rayon or the like,which is wound over the metallic yarn in the opposite direction.

In order to obtain a commercially acceptable frieze yarn, the metallicyarn must be wound about the core yarn in a manner such that portionsthereof project laterally of the core yarn to produce the desiredshaggy, rough textured effect.

Accordingly, as shown in the drawing, 10 designates a spool of core yarn11 which is loosely supported on a base 12. Core yarn 11 may be rayonwith a 75 to 900 3,382,655 Patented May 14, 1968 denier and of themultifilament type with a twist of 2 to 3 turns per inch. The core yarn11 moves upwardly from spool 10 through a guide eyelet 13 extending froma guide support 14; and thence passes about a star wheel 15 rotating ona horizontal shaft 16.

The upwardly moving core yarn 11 is wrapped with metallic yarn 17 takenfrom a spool 18 which is mounted on a tubular spindle 19 arranged forrotation about its vertical axis by way of belt means 20 passing aboutwhirl portion 21 of the spindle 19. The metallic yarn 17 feeds freelyfrom spool 18 as the same is rotated, with a ballooning effect, and iswrapped about upwardly moving core yarn 11 above spindle 19.

The metallic covered core yarn continues its upward movement through arotating tubular spindle 22 which carries a spool 26 of cover yarn 24which may be rayon or the like. Cover yarn 24 passes from rotating spool23 through a flier 25 mounted on the spool 23 in a conventional manner;the flier 25 being of known construction, as shown in Patent No.1,826,713.

The spindle 22 is rotated by means of belt 20A passing about whirlportioin 26 of the spindle, in a direction o-pposite to that in whichspindle 19 is rotated. Thus, the cover yarn 24 is effective to lock themetallic yarn 17 in place on core yarn-1'1.

The resultant frieze yarn 27 moves upwardly above rotating spindle 22,passes about a star wheel 28 rotating on a horizontal shaft 29 and'thence to a takeup roll 30 rotating on a horizontal shaft 31.

It has been found that with metallic yarn '17 freely fed from its spool18 and applied to core yarn 11; cover yarn 24 being applied by way offlier 25; and the speeds of the spindles 19, 22 and takeup roll 30suitably correlated the resultant frieze yarn 27 will be of uniform highquality.

The spindle 19 may be rotated through its belt means 20 at speedsranging from about 2500 to about 3200 r.p.m., with a preferred speed ofabout 2900 r.p.m. The spindle 22 may be rotated at speeds ranging fromabout 4500 to about 5300 r.p.m., with a preferred speed of about 5000r.p.m. The takeup roll 30 is rotated at a speed of from about 30 toabout 45 r.p.m., with a preferred speed of about 36 r.p.m. The starwheels 15, 28 are rotated at suitable speeds to maintain the upwardmovement of the core yarn 11 and associated yarns 17, 24 in a properlytensioned condition.

The metallic yarn 17 is of conventional type with a width ranging from$6 inch to about inch, with a width of inch being particularlyeffective. The cover yarn 24 is a multiiilament yarn of rayon, nylon,polyester or the like and may have 'a denier of from 70 to about 300.

It is understood that spindles 19 and 22 are rotated by suitable motormeans, not shown, through belts 20, 20 A;

and takeup roll 30 is also rotated by motor means, not.

shown. The speeds of such motor means is suitably regulated to obtainthe spindle and takeup roll speeds as in-,

dicated above.

As various changes might be made in the herein disclosed embodiment ofthe invention without departing from the spirit thereof, it isunderstood that all matter herein shown or described shall be deemedillustrative and not by way of limitation except as set forth in theappended claims.

1 claim:

'1. Apparatus for making metallic frieze yarns comprising support meansfor a source of core yarn, first tubular spindle mean-s arranged forrotation about :a vertical axis and in vertical alignment with saidsourceof core yarn, said tfirst spindle means being adapted to carry asource of metallic yarn, core yarn from said source being adapted tomove through said first tubular spindle means while said first spindlemeans is rotating to freely feed metallic yarn from the source on saidfirst spindle means unrestrained in one direction about said moving coreyarn, second tubular spindle means arranged for rotation about avertical axis and in vertical alignment with said first spindle meansand for carrying a source of cover yarn, flier means on said secondspindle means and rotatable therewith for feeding cover yarn from thesource thereon about said metallic covered core yarn in the oppositedirection, and rotatable takeup means in vertical alignment with saidsecond spindle means for receiving the composite yarn; the rotationalspeeds of said first and second spindle means and said takeup meansbeing correlated.

2. Apparatus as in claim 1 wherein said first spindle means rotates atspeeds of from about 2500 to about 3200 rpm; said second spindle meansrotates at speeds of from about 4500 to about 5300 r.p.m. and saidtakeup means rotates at speeds of from about 30 to about 45 r.p.m.

3. Apparatus as in claim 2 wherein said first spindle means rotates at aspeed of about 2900 r.p.m., said second spindle means rotates at a speedof about 5000 r.p.m. and said takeup means rotates at a speed of about36 r.p.m.

4-. The method of forming metallic frieze yarns comprising moving a coreyarn vertically, winding .a metallic yarn freely and unrestrained in onedirection about the vertically moving core yarn, winding a positivelydirected and restrained cover yarn about said metallic covered core yarnin the opposite direction, and winding the composite metallic friezeyarn about a rotating takeup means, the rotational speeds of saidmetallic and cover yarns and said takeup means being correlated.

5. The method as in claim 4 wherein said metallic yarn is Wound at aspeed of from about 2500 to about 3200 r.p m., said cover yarn is woundat a speed of from about 4500 to about 5300 r.p.m., and said takeupmeans is rotated at a speed of from about 30 to about 45 r.p.m.

6. The method as in claim 5 wherein said metallic yarn is wound at aspeed of about 2900 r.p.m., said cover yarn is wound at a speed of about5000 r.p.m., and said takeup means is rotated at a speed of about 26r.p.m.

7. The method of claim 4 wherein said metallic yarn has a width of frominch to 4;; inch.

References Cited UNITED STATES PATENTS 1,798,359 3/1931 Slade 57-161,898,941 2/1933 Crossley 57-16 2,250,334 7/1941 Perry 57-16 XR2,276,797 3/1942 Schlums 57-16 2,302,543 11/1942 Gift et a1. 57-162,454,405 11/1948 Powell 57-16 2,579,244 12/ 1951 Seifried 57-163,124,924 3/1964 Smith 57-18 3,166,885 1/1965 Bridgeman et a1. 57-17FRANK J. COHEN, Primary Examiner.

30 D. WATKINS, Assistant Examiner.

